Huss was burned for heresy.

因信仰异而被烧死。

We should denounce a heresy.

我们应该公开指责异端邪说。

They that approve a private opinion, call it opinion; but they that mislike it, heresy: and yet heresy signifies no more than private opinion.---Thmos Hobbes, Leviathan.

众人认同的私意，称为公见；众人不喜的私意称为异端。不过，异端和私意哪有什么分别。关键在于是否经过了社会公众意见的认同过滤，是否从私人的、变成了公众的。